Dental x-ray-film package



June 7,1927. v 1,631,497

H. l. MARLER DENTAL x-RAY FILM PACKAGE Filed Sept. 20, 1923 IJV VEN TOR.

Patented June 7,1927.

` fil-,sarai Irannr ifiviAELEfn, OE NEW YORK, N. Y., .assieNoafroErismi/iaNironaicooivigaNirf,

nocHEsfiEnNEw Yoan, e OOREOEATIONOE NEW YORK.

' :DENTAL .X-naY-.Erriia PACKAGE.

- Application iiie'a september 20,1923.' serial No. 563,929.

This invention vrelates to packages of sensitized ilm prepared for useindividually inl dental X-ray work.

The objects of this invention are that such Va package can be assembledeasily andcheaplv, that it will be'notatably easy -to open in the dimlight of the dark room, and particularly that it shall be comfortable tothe patient.

These objects are attained by the simple lexpedient'of using, as abinding means tor holding togetherthe edges of the sheets of materialcomprising the package,va bandV oit' l soft elastic rubber.

Other objects andV advantages will appear from the tollowingdescriptionin which reierence is made to the accompanyiiigdrawings, intheseveral'figures of which the. same reference characters designate thesaine part throughout, and in'which Fig. l1 is a perspective view of vmyim- Y proved package;

Fig.l 2 is a section through the package gv Fig. 3 is a section througha some-what different package; Y

vFig. 4 shows in perspective, vthe rubber edge band, and the collectedsheets before assembly;

Figs. 5 and 6 are sectionsy of -ditl'erent forms of band used for thebeading; and

Fig. 7 is a fragmentary section of a modified package.

The package, in its simplest embodiment, comprises the usual sensitizedsheet l, preierably ilm, upon each side of which is an opaque protectivesheet 2. Preferably., but

not necessarily, these sheets 2 are waterproof and Ot cardboard, which,while easily bend-` able without cracking, render the package Ysurrounds the package and embraces and holds together the edge.V Thismay be j rather stid. A rubber beading 3 entirely molded rubber butpreferably is a heavy rubber band having a periphery, when unstretched,less than the package, as shown in Fig. 4. Thel band is applied merelyby stretching and snapping it around the edges otv holds them securelytogether during the use to which they are Ordinarily subject. It a heavyband of red rubberis'used I have found the joint light tight underordinary working conditions. Ihe efficient lite of the rubber band is;greater than the period for Y yielding edge that'is more comfortable tothe which the sensitive material is usually guar- 4 patient than' anyyother package with which f VI am `familiar. This band may, when un#stretched, have a concave inner surface 8 as f is shown in Figs. 4and5,'or may be aheavy flat band 4 as shown in section in Fig. 6. In

Fig. 3, there are shown' as incorporated in the package two sheets offilm 1, anda sheet ot metal foil 7, besidesthe protective sheets 2, thebeading in ythis-iigure being formed from a flat band 4. Ify desiredtheband may be held in place by a slow-dryingl cement aps plied to theedges of its inner surface asindicate-d at 6 inFig. 7. Such a cementcomprising a composition of rubber and coal 75 tar pitch with a suitable.softener such as benzol, gasoline or chloroform is well known.

It furnishes an added security in holding thepackage together underunusually rough treatment orv if tlexedmore than is customl y ao Whenthe package is to be openedv inthe ary.

darkroomit is obvious that all that has to `be done is to stretch thebeading enough to snap it off one end of the package. It a cement isused, the beading can still be easily stripped ofi' without mutilationof the sheets.

The beadingis sott and pliable and does not take a set if be-nt. 'Ihestiiness of the package and the tension ot the stretched rubber shouldbe so related that, while the band is held firmly in place and holds thesheets securely, the latter .willnot be buckled or distorted bytheedge-strain.

The above described embodiments. are given by way of illustration and Icontemplate as within the scope of my invention all such modicationsiand equivalents. as vfall within the terms of the appended claims.

l. A dental X-ray package comprising a sheet Ot sensitive material,protective sheets on opposite sides thereof and an edge bead- Havingthus described my invention, what'` I claim as new anddesire to securevby Lets;

Ving 'comprising a soft rubberband, said band andsevingtohold the sheetstogetheiI Aband being` under tension and embracing andl and alsorservingas a cushion edge for the 10' contacting the edges of the said sheets.package, the package so formed being ca- ,ZjAdental Xerey film packagecomprising pable of being bent. i i

asheet of sensitive film, a sheet of protective Signed at New York, NewYork, this 10th flexible material on each side thereof and an day ofSept., 1923.

edge,` beading Yof soft elastic rubber, said f beading being formed fromasingl-erubber Y HARRY I.'lVIA;RLER;-

